Were people able to change their name without paperwork in the 50s/60s? Or do you think that perhaps Patrick/Ada adopted William knowing he was their grandchild? Is there anyway of finding out? Or could Sidney Arthur, being his birth father, have adopted him so he could be added to Williams birth certificate?
Marriage
Reg 15592 Yr 1916 HEFFERNAN Sidney A
To JOHNSON Eileen G
At BATHURST
A child was born to this couple in 1918 and registered at Lithgow. So Sidney was still there.
I think it would have been difficult for the new daughter in law not to notice in a rural community that Ada HEFFERNAN had a little 2 year old at the time of this marriage. 
Regarding use of a name. I believe is not illegal in Australia to call yourself whatever you wish as long as it is not done for purposes of deception or fraud.
There were no formalised laws for adoption in the times we are looking at.
BTW, how do you find 1914 NSW births as I can only view up to 1913?
I think this was discussed between you and another chatter on another thread earlier this month.
Sue
Sorry, I obviously wasn't very clear, the daughter-in-law I mean is Sidney Arthur's second sons second wife and she wasn't on the scene until the late 1950s early 1960s when William was in his late 30s. She has mentioned William but not in the sense that he was a half brother-in-law to her but more of an uncle type relation, unless I misunderstood her. I'll check with her again but I'm trying not to be insensitive and pushy, seeing as how I've only just found her this week - it's hard to know how to ask such a difficult question as it relates to her recently deceased husband. Is William her husbands half brother or his uncle - maybe she does know and still wants to keep it quiet. I'm hoping to hear from a couple more of her rellies in the near future so perhaps more answers will come then.
Quote from: dog_foster_carer on Today at 08:03
I cannot say if that is her birth.
There are two marriages in the name Ethel E Simpson and you can see them for yourself on
http://www.bdm.nsw.gov.au/Both these women (who by the way are not the same identity) went on to have children.
Sue
Thanks Sue, that's what I thought. I'll wait and get Williams birth transcriptions (there will be two of them won't there?) and hopefully that will tell me who she is.
Cheers!!
dfc
